USING EGOCENTERED NETWORKS IN SURVEY-RESEARCH - A METHODOLOGICAL PREVIEW ON AN APPLICATION OF SOCIAL NETWORK ANALYSIS IN THE AREA OF FAMILY RESEARCH

Can questions about families be adequately answered with household survey data? This question leads us to the problem to defining the family. To help us answer this question we use network analysis as a tool to examine the family without a preconceived definition. To get information about the population of family configurations in Federal Republic of Germany, we choose a survey technique that measured ego-centered networks (10-12 network generators, 4-6 network interpreters). Based on two pretests (n1 = 98, n2 = 534) and the main survey (n = 10,000), we discuss some problems encountered during data collection. We also examine the validity and reliability of the data. We used variations of the measurement instrument and asked a group of 99 respondents twice to test reliability. Then we compare our results with census data and compatible US and German studies to test validity. The results show: (1) It is possible to get reliable network data by using survey technique. (2) Size of networks, named persons, named relations are reasonably stable. (3) The instrument to measure networks is constant against minor changes in formulation of questionnaire and against variation of collecting techniques. These findings hold both on the macro level (aggregate data), and also on the micro level (person related data). © 1991.